JP2001068209A - Locking structure of socket and plug - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a structure and to enhance a coming-off prevention. SOLUTION: In a connector comprising a socket 11 and a plug 21, a slot 11c and a projection 11d adjacent to the plug fitting side of the slot are formed in a housing 11a of the socket 11. Additionally, an extension part 21d is formed on a separator 21a of the plug 21, two window parts 21e and a projection 21f adjacent to the socket fitting side of the window parts 21e are formed on the base part of the extension part 21d, and the projection 21f of the plug 21 and the projection 11d of the socket 11 are fitted in the slot 11c of the housing 11a of the socket 11 and the window parts 21e of the separator of the plug 21, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a socket and plug locking structure for a connector.

[0002]

2. Description of the Related Art Conventionally, various lock structures have been considered to prevent a socket and a plug from coming off. For example, the lock structure shown in FIG. 3 which is a cross-sectional view when the socket and the plug are connected to each other is provided with a small plate 1d having a claw 1c supported by a thin joint 1b at the center of the upper surface side of the housing 1a of the socket 1. The claw 2c facing the above-described claw 1c is provided on the separator 2a of the plug 2. Thus, when the socket 1 and the plug 2 are fitted, the claws 1c, 2c
Each of them functions as a hook (FIG. 3 shows this state) and a function of preventing slippage.

FIG. 4 shows another conventional example. FIG. 4A is a plan view, and FIG. 4B is a sectional view taken along line EE. A rectangular hole 4c is provided in an extension 4b extending to the center of the separator 4a of the plug 4. Contrary to this, a projection 5c is provided on the housing 5a of the socket 5, and these are fitted to each other to form a lock structure for preventing the socket 5 from coming off. In FIG. 4, reference numeral 6 denotes a circuit board to which a plug is attached;
Is a circuit board to which the socket is attached.

[0004]

However, in the former lock structure among the above-mentioned conventional examples, the outer dimensions of the connector are increased, and a lock structure for preventing the lock portion at the time of packing from becoming entangled is provided. It just gets complicated.
That is, entanglement between products occurs at the time of packing, resulting in defective products.

[0005] In the latter conventional example, although the structure is simple, the protrusion is provided only on one side, so that the retaining effect is not always reliable. In particular, wear is caused by repeated coupling and separation. , The effect is weaker.

Accordingly, an object of the present invention is to provide a socket and plug locking structure which is simple and has a large retaining effect.

[0007]

In order to achieve the above object, according to the present invention, in a connector comprising a socket and a plug, a groove is formed in a housing of the socket and the groove is adjacent to a plug fitting side of the groove. A projection is provided on the plug, an extension is provided on the separator, a projection is provided at a base of the extension, adjacent to a socket fitting side of the window, and the groove of the housing of the socket is provided. The projection of the plug is fitted with the projection of the socket, and the window of the separator of the plug is fitted with the projection of the socket. As a result, the concave portion and the convex portion on the plug side and the concave portion and the convex portion on the socket side are installed and fitted to each other.
A reliable locking effect can be obtained. The projection of the socket can be made a small one with a simple shape, and the occurrence of defects due to entanglement can be reduced. In addition, the height of the projection on the outer shape of the housing of the socket can be reduced, and the outer size can be reduced.

Further, if a plurality of projections of the socket, window portions of the plug opposed to the projections, and projections of the plug are provided, the locking effect can be further increased.

Further, if the surface of the projection of the socket and the projection of the socket on the insertion direction side of the socket and the plug is an inclined surface, and the opposite surface is an upright surface, the socket can be inserted into the plug. One-touch fitting becomes easy.

[0010] Further, if an inclined surface is provided on a surface of the socket where the projection of the plug comes into contact with the socket when the plug is fitted into the socket,
Further, the one-touch fitting of the socket into the plug can be facilitated.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view showing a locked state of a socket and a plug using a lock structure as one embodiment of the present invention. FIG. 2 is a sectional view taken along line DD of FIG.

In the socket 11, socket terminals 13 are fitted into a plurality of grooves in the housing 11a, and wires (electric wires) 14 are fixed to the socket terminals 13. The socket terminal 13 has, at its tip, a contact portion 113a and a contact portion 213b with the plug terminal 23 (described later). Further, the upper part of the housing 11a of the socket 11 has a groove 11c. On the fitting side of this groove 11c with a plug 21 (described later),
Two projections 11d are provided. The protrusion 11d has a slope 11e.
And the opposite side is an upright surface 11f.

On the other hand, the plug 21 has a separator 21a in which a plurality of plug terminals 23 having a rectangular cross section are provided. The separator 21a is connected to the housing 11 of the socket 11.
It has a shape having a fitting portion 21b so as to surround a. An extension 21d is provided at the center of the wall 21c on the upper surface side of the housing 21a, and two windows 21e, 21e are opened at the base of the extension. These two windows 2
Protrusions 21f, 21f are provided adjacent to the respective socket fitting sides of 1e, 21e. The projections 21f, 21f have a slope 21g, and the opposite side is an upright surface 21h.

The upper wall 21 of the separator 21a
c, a window 21 is provided on both sides of the extension 21d in the base.
t and 21t are provided to adjust the elastic force of the extending portion 21d. Also, the projections 21f, 21f of the plug 21
The surface of the housing 11a of the socket 11 which is brought into contact with the socket 11 at the time of fitting into the socket 11 is a slope 11g.

Next, the fitting and fitting between the socket and the plug will be described.

A socket 21 connected to the wire 14 is fitted into a fitting portion 21b of a plug 21 having a plug terminal 23 fixed to a substrate (not shown). In the process of this insertion,
First, the slope 11g and the slope 21 of the projection 21f of the plug 21 are formed.
g. The wall 21c on the upper surface side of the separator 21a of the plug 21 and the extension 21d are slightly lifted by their elasticity, and then the slope 21g and the slope 11e of the projection 11d of the socket 11 come into contact with each other.
c and the extending portion 21 d are further lifted by their elasticity, and in the fitted state after the fitting (shown in FIG. 2), the portion inside the plug terminal 23 is
a is fitted to the contact portion 213b to be electrically conducted. The projection 11 d of the socket 11 is connected to the window 2 of the plug 21.
1e, and the right end of the window 11d in FIGS. 1 and 2 and the upright surface 11f of the projection 11d abut or face each other.

The projection 21f of the plug 21 fits into the groove 11c of the socket 11, and the upright surface 21f of the projection 21f
h abuts or faces the left end of the groove in FIGS. 1 and 2. The socket 11 is connected to the plug 21 by the fitting, the contact and the opposition, so that the retaining effect is reliably achieved.
However, these fitting and fitting can be performed by a one-touch operation of simply inserting the socket 11 into the plug 21.

If it is necessary to release the connection between the socket 11 and the plug 21, the extension 21d
Is pushed up with a finger or the tip of a screwdriver or the like to disengage the projection 21f from the groove 11c and the projection 11d from the window 21e, and the socket 11 is pulled out.

As described above, since the connection is made by both the projection 11d on the socket side and the projection 21f on the plug side, the height of each can be reduced. Therefore, the external dimensions (especially thickness) of the connector can be reduced. Also, even if the product is packaged in a socket or plug alone, no entanglement occurs,
Defective products can be reduced. The loosening and loosening of the connection against impact and vibration can be reduced.

[0021]

As described above, according to the present invention,
By providing the protrusion and the recess corresponding to the opposite side of the socket and the plug, a lock structure of the socket and the plug having a simple structure and a large retaining effect can be obtained.

[Brief description of the drawings]

FIG. 1 is a plan view of a connector showing a state in which a socket and a plug using a lock structure according to an embodiment of the present invention are connected.

FIG. 2 is a sectional view taken along line DD of FIG. 1;

FIG. 3 is a cross-sectional view (a cross-section taken only on the socket side) showing a state of connection between a socket and a plug, showing an example of a conventional lock structure between a socket and a plug.

FIG. 4 is a drawing showing another conventional socket and plug having a socket and plug lock structure, wherein (A) is a plan view,
(B) is a cross-sectional view taken along the line EE (oblique cross-sections are omitted).

[Explanation of symbols]

11 socket, 11a housing, 11c groove, 1
1d protrusion, 11e slope, 11f upright face, 11g slope, 13 socket terminal, 13a contact part 1, 13b
Contact part 2, 14 wire (electric wire), 21 plug, 21
a separator, 21b fitting part, 21c wall, 21d
Extension part, 21e, 21t window, 21f projection, 21g
Slope, 21h upright, 23 plug terminals.

Claims (4)

[Claims] 1. A connector comprising a socket and a plug, wherein a protrusion is provided in a housing of the socket and a protrusion is provided adjacent to a plug fitting side of the groove, and an extension is provided in a separator of the plug. A window is provided at the base of the extension, and a projection is provided adjacent to the socket fitting side of the window, the groove of the housing of the socket, the projection of the plug, and the window of the housing of the plug and the socket. Wherein said projection is fitted with said projection. 2. The socket and plug locking structure according to claim 1, wherein a plurality of said projections of said socket, said window portion of said plug facing said projection, and said projections of said plug are provided. 3. The surface of the projection of the socket and the projection of the socket on the insertion direction side of each of the socket and the plug is an inclined surface, and the opposite surface is an upright surface. A lock structure for a socket and a plug according to claim 1 or 2. 4. A socket and a plug according to claim 1, wherein an inclined surface is provided on a surface of said socket where said projection of said plug comes into contact with said socket when said plug is fitted. Lock structure.